PetMall Knowledge Hub

Pet Breed Guide NZ

Electric Eel

The Electric Eel (Electrophorus electricus) is a truly unique and fascinating freshwater fish, renowned for its incredible ability to generate powerful electric shocks. Native to the murky waters of South America, these large, serpentine fish can grow over two metres long, making them a formidable presence in any aquatic environment. Their electric organs are used for both hunting prey and self-defence, delivering jolts strong enough to deter large predators. Keeping an Electric Eel is a highly specialised undertaking, demanding extensive knowledge, a massive tank, and a significant commitment. In New Zealand, the Electric Eel is classified as 'restricted', meaning prospective owners must navigate strict regulations and obtain necessary permits from MPI and local councils before considering ownership.

NZ Status PendingApartment FriendlyHouse with SectionSouth Island ReadyAuckland Climate Friendly

Photo Gallery

NZ Ownership Snapshot

NZ Status Pending
Noise Level
quiet
Social Needs
solitary
Water Type
freshwater
Tank Size
250L minimum
Diet Type
Carnivore
UVB Required
No

NZ legal status pending official verification from PetMall's government-source facts library. Do not claim this animal is legal to buy, import, breed, sell, or keep until verified.

Breed Snapshot

Size
large
Lifespan
10-22 years
Origin
South America
Care Focus
Best researched for compatible tank mates, grouping, and stable water conditions.
NZ Price
NZD $2,000 - $10,000+ (highly variable, reflecting rarity, import costs, and permit fees for legal acquisition)
Annual Vet Cost
NZD $500 - $1,500+ annually (specialist exotic vet consultations, medication, diagnostics; costs are high due to limited availability of vets experienced with large fish and potential need for sedation for examination)

Personality Scores

Friendliness1/5
Trainability1/5
Energy3/5
Grooming4/5
Health Risk3/5
Apartment1/5
With Kids1/5
With Pets1/5

NZ Lifestyle Fit

Keeping an Electric Eel in a New Zealand home is an undertaking of immense scale and complexity, primarily due to their 'restricted' legal status and colossal size. These animals are not suitable for typical residential settings, including apartments or even most suburban houses, due to the requirement for a tank that can easily exceed 2,000 litres. The sheer weight of such a setup, combined with the water, necessitates a structurally reinforced floor. While climate considerations like Auckland's humidity or the South Island's cold aren't directly critical for an indoor, temperature-controlled aquarium, maintaining stable water parameters and temperature within such a large volume requires significant energy and advanced equipment. Regional restrictions are paramount: prospective owners must verify specific bylaws with their local council in addition to obtaining MPI permits. Sourcing legally in NZ is exceptionally difficult, likely requiring a specialist importer who can navigate the complex permit process and biosecurity requirements, rather than a standard pet shop. This animal is for dedicated, expert aquarists with substantial resources and a willingness to comply with strict regulations.

NZ legal status pending official verification from PetMall's government-source facts library. Do not claim this animal is legal to buy, import, breed, sell, or keep until verified.

About This fish

The Electric Eel, scientifically known as *Electrophorus electricus*, is not a true eel but rather a type of knifefish, belonging to the order Gymnotiformes. Originating from the freshwater rivers and floodplains of South America, particularly the Amazon and Orinoco basins, these remarkable creatures are best known for their extraordinary bio-electric capabilities. They possess three pairs of abdominal organs that can generate up to 600 volts of electricity, used both to stun prey and to defend themselves from predators. Electric Eels are long-lived, typically surviving between 10 to 22 years in captivity with proper care. They are large, growing up to 2.5 metres in length and weighing up to 20 kilograms, necessitating an immense commitment in terms of tank size and husbandry. Their unique physiology allows them to breathe atmospheric air, supplementing the oxygen they extract from water, which is an adaptation to their often oxygen-poor natural habitats.

What They Look Like

Electric Eels possess a distinctive elongated, cylindrical body, somewhat flattened on the underside, giving them a serpentine appearance. Their skin is typically dark grey to brownish-black on the dorsal side, fading to a yellowish or orange hue on their ventral surface. They lack dorsal, caudal, and pelvic fins, instead propelling themselves through the water with an undulating anal fin that runs almost the entire length of their body. Their head is flattened and broad, with a relatively small mouth. The most notable internal feature, though unseen, is the arrangement of their electric organs, which occupy about 80% of their body length. These organs are modified muscle cells called electrocytes, stacked in columns, allowing for the generation of powerful electrical discharges.

Personality & Behaviour

Electric Eels are primarily nocturnal predators, spending their days hidden in submerged vegetation or crevices and emerging at night to hunt. They are generally solitary animals, and while the raw data suggests 'groups', in captive environments, especially as adults, they are best kept alone due to their predatory nature and territorial tendencies. They are ambush predators, using low-voltage pulses to navigate and locate prey, and high-voltage shocks to incapacitate it. Despite their formidable abilities, they are generally reclusive and not aggressive towards humans unless provoked or threatened. They are not interactive pets in the traditional sense and should be observed from a distance. Their behaviour is largely driven by hunting instincts and the need for secure hiding spots.

Life in New Zealand

As a 'restricted' species in New Zealand, the Electric Eel cannot be freely bought, sold, or kept without specific authorisation. Prospective owners must understand that obtaining an Electric Eel in New Zealand involves navigating a stringent legal framework. This means applying for and securing permits from the Ministry for Primary Industries (MPI) and potentially local councils, which will assess the suitability of the keeper, the proposed enclosure, and the biosecurity measures in place. The legal status is in place to prevent the introduction of potentially dangerous or invasive species into New Zealand's unique ecosystem. Any attempt to acquire, keep, breed, or transport an Electric Eel without the proper permits is illegal and carries significant penalties. Sourcing these animals legally in NZ is extremely challenging and typically involves specialist importers with the correct permits.

Is This the Right Pet for You?

An Electric Eel is an extraordinarily demanding pet, suitable only for highly experienced aquarists with a deep understanding of large, predatory freshwater fish and the resources to provide an exceptionally large, specialised habitat. The legal hurdles in New Zealand are significant, requiring extensive paperwork and approval from MPI and local authorities. Beyond the legalities, the sheer size of the animal necessitates a truly massive aquarium – hundreds, if not thousands, of litres – with robust filtration and appropriate environmental controls. Their electric capabilities mean handling is dangerous and should only be attempted by professionals with appropriate safety gear. This is not a pet for casual enthusiasts or those seeking an interactive companion. It is a commitment to providing a lifelong, highly specific environment for a powerful and unique creature, all while adhering to strict New Zealand regulations. If you are not prepared for these challenges, an Electric Eel is not the right pet for you.

Fun Facts

Fact 1

Electric Eels are not true eels; they are a type of knifefish more closely related to carp and catfish.

Fact 2

They can generate up to 600 volts of electricity, enough to stun a horse or human.

Fact 3

Electric Eels have three pairs of electric organs: the main organ, Hunter's organ, and Sach's organ, each serving different purposes.

Fact 4

They use low-voltage pulses (around 10V) for navigation and sensing their surroundings, acting like a 'radar'.

Fact 5

Electric Eels can breathe atmospheric air through a specialised mouth lining, allowing them to survive in oxygen-poor waters.

Related Breeds

PetMall Editorial Desk

Reviewed and curated for practical, vet-informed guidance

Every guide is edited into a consistent house style so readers can scan quickly, compare recommendations, and understand where general education stops and personal veterinary advice begins.

Updated
Recently updated
Positioning
Evidence-based pet care for NZ households

Owner Questions

Common Questions

Is it legal to keep an Electric Eel as a pet in New Zealand?+

NZ legal status: pending. NZ legal status pending official verification from PetMall's government-source facts library. Do not claim this animal is legal to buy, import, breed, sell, or keep until verified. New Zealand has strict biosecurity rules, so always confirm current requirements with MPI, DOC and your local council before getting one.

How big does an Electric Eel get and how long do they live?+

The Electric Eel's typical adult size is large, and they usually live 10-22 years. Plan housing, equipment and long-term care around this before getting one.

What size tank does an Electric Eel need in NZ?+

A Electric Eel needs a minimum tank/enclosure of about 250L minimum. Bigger is almost always better for stable water/conditions and the animal's wellbeing — undersized setups are a common beginner mistake.

Is an Electric Eel a good pet for beginners?+

The Electric Eel is better suited to owners with some experience — research the full setup, diet and care commitment before deciding. Check the care details on this page and talk to a specialist vet or keeper if unsure.

Tip

Product Tips for Electric Eels

Based on this breed's unique physical traits, coat, and energy levels, we recommend focusing on these product categories:

Cat SuppliesShop Collection →

Long-haired cats need frequent grooming; undercoat combs and hairball remedies are highly recommended to prevent matted fur and shedding.

petmall.co.nz

Shop at PetMall

The products below are practical support items for your pet. PetMall ships across New Zealand.

Important Note

Information on PetMall is for education only and does not replace an in-person assessment by a veterinarian. If your pet is unwell, in pain, rapidly deteriorating, or you are unsure whether something is urgent, contact your local veterinary clinic promptly.